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Patented July 10, 1928.

UNITED STATES PATENT OFFICE.

SEVERIN HALVORSEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE NEWSPAPERSTUFF- ING MACHINE COMPANY, OF SEATTLE, WASHINGTON, A CORPORATION OFWASH- IN GTON PNEUMATIC FEED MECHANISM.

Application filed December 22, 1924. Serial No. 757,340.

My invention relates to pneumatic feed mechanisms for feeding papers orlike articles from the end of a stack or pile.

The objects of the invention are to pro- 6 vide an improved constructionof pneumatic feed mechanism of the class specified; to secure rapidityand ei'liciency in operation; to increase feeding efliciency byrelieving the endmost article which is to be fed from pressure from theweight of other articles; to secure effective action with certain typesof papers or articles which have not heretofore been effectively fed; toprovide adanta zeous means for holdingthe articlesin proper position forfeeding" and for re leasing them at the proper time; to arrange forfeeding the papers or articles when mounted in vertical position; toarrange for the effective advancement of the bottoms of the articleswhen mounted in vertical position; to permit effective feeding: of thetops of. the same when in such position; and to secure the foregoing andother desirable results in a simple and expeditious manner.

In the accompanying drawings Fig. 1 is a front view of a pneumaticfeeding mechanism embodying my present invention;

Fig. 2 is a plan view of the same;

Fig. 3 is a view of the right hand end of the machine;

Fig. 4 is a view of the left hand end; and

Figs. 5 and 6 are cross sections taken on lines 5 5 and 66.respectively, in Fig. 1.

Referring to the drawings, I show a series of papers or other articlesA--A, arranged side by side vertically so as to make a substantiallyhorizontally extending pile. here the articles are newspaper sections,the folded edges thereof are preferably uppermost and the cut edgeslowermost as shown in Fig. 6. A supporting plate 1 is provided for theendmost articles or papers which are to be fed, and an upright plate 2is provided for supporting the endmost article and so supporting thestack or pile against falling. Fingers 3 are arranged at the top of thestack or pile so as to engage and hold the upper folded edges of thepapers. These fingers are actuated intermittently so as to release theendmost paper, this being done by mounting the fingers on the rotaryshaft 4 which is rocked by link 5 pivotally connected at 6 to arm 7 onsaid shaft, and also pivotally connected at 8 to rocker arm 9, pivotedat 10 and carryinp roller 11 which is actuated by cam 12 on rotary shaft13.

The papers or articles are advanced forwardly as they are fed by meansof a feed or advancing chain 14 supporting the lower unfolded edges ofsaid articles and traveling over sprocket wheels 15 and 16 on shafts l7and 18, respectively, shaft 17 being driven by sprocket arrangementcomprising sprocket wheel 19 on shaft 17 and pawl 20 on swinging arm 21which is reeiprocated by link 22 actuated by cam on main drive shaft 24.

The upper portions of the papers or articles being fed are advanced by aplate 26 slidably mounted on a rod 27, a flexible coin nector or cord 28being attached to the slide 29 carrying said member 26 and a weight 30being attached to the end of the flexible connector 28, which latter ispassed over pulley 31 so that the weight 30 tends constantly to pullupon flexible connector 28 and thus push the upper ends of the articlesforward.

The endmost article or paper after being released by fingers 3 isengaged and pulled forwardly and downwardly by pneumatic pulling devicesor suckers 32carried by a rotary tubular member 33, which is mounted forvertical reciprocation on a sliding" carriage 3 1-, which in turn ismounted at the upper end of a slidable rod or bar 35 moving in bearings36. Rod 35 is actuated to reciprocate suckers 32 by swinging: arm 37carried by oscillatory shaft 4 0, which latter is rocked so as to swing,member 37 by pinion 39 on shaft 40 and rack 41 en sra .g-ing pinion 39.Rack 4-1 is reciprocated by cam l -1 mounted. on shaft 24 and engagingrollers H and 45 on link 1-6 carrying rack 41.

Suckers 32 are swung; forwardly and downwardly when their slidingcarriage 34L is moved downwardly by means of pinion 48 on tubular member33, said pinion engaging stationary rack 49. This downward and forwardmovement of suckers 32 pulls released edge of endmost paper sectionoutwardly and downwardly.

Such outwardly and downwardly pulled paper cope is then engaged byengaging face of rotary segment 51 mounted on rotary shaft 13, whichlatter is driven by sprocket chain 52 running to main drive shaft 24.

Released paper edge struck by segment 51 is swung furthcr downwardly andforwardly and is then gripped between segment 51 and gripping roll S-i,which latter is driven by gear 55 on shaft 12} and pinion 56 on rollshaft 57. The gripped paper is by this means withdrawn entirely frompile or stack of papers and then moved downwardly between guides (30 and(31 and between delivery or exit rolls {$2 and $3. The latter are drivenby irears til. which is driven by pinion 56 and gear 64 drives pinion 65on roll 66, andpinion (35 drives pinion 67 on roll shaft (38. Roll shaftis mounted in adjustable bearing 3!} controlled by spring 70, makingroll 63 adjustable to accommodate different thicknesses of paper. Tohold up per edges of papers steady in the pile or stack, pins orstabbing; devices are providez to stab or cr,..;a;ge the upper foldededges of the papers at proper times. These devices 72 are reciproca'ldto engage and disengage the paper edges, the reciprocation beingpreferably in a vertical manner as by mounting them on the verticallyreciprocatii'ig rods T3 havingpivotal connections at 74 with swineingarms T5 on rock shaft 76, which latter rocked by arm 77 pivotallyconnected with link 78 carrying roller 79 and having' forked end 80straddling shaft 13, which latter is provided with cam 81 acting onroller 79 to reciprocate link 78 upwardly and downi'ardly, and therelnxvertically reciprocate pin holding devices 72.

Tubular member 33 carrying suckers 32 is mounted for reciprocation iubearings 85, one of which carries a pipe 80 sliding in a pipe section 87extending to valve block 88 having supports controlled by rotary valve89 actuated by linl' 90, which is in turn actuated by rocker arm illpivoted at 92 and carrying roller 93 acted on hy cam S t on rotary camshaft 15. By this arrangement suction for the suckers 32 is controlledso that there is suction to engage and pull down endniost paper atproper time, but no suction when paper is engaged and actuated by rotarysegment 51. and gripping roll 54-.

By this invention, by arranging the papers or articles in asubstantially vertical position, the endinost article can be veryreadily removed because it is not necessary for it to bear the weight ofthe articles above it, as would he the case in a vertical pile. with thearticles horizontal. This permits feeding of articles of somekinds whichcould not be fed properly in the vertical pile. FHLtliGI'IIlOIQ,pressure may be exert d on these vertically arrai'igi'ed articles so asto feed them forward in the desired manner, but this pressure is ilv whocut and click-cue.

lllli l l i o is and Lao 1ec1p1ocating paging pins, and conse- .tapaenlly any tendency of the articles to fall or llop downwardly will l.

it will also appear overcome and feedlllg will thus be stabilized inthis respect. It will also be seen that the mechanism for engaging andpulling down the endmost article is eliective a id c'l'iicient, so thataltogether a high degree of elliciency and great speed of action may besecured.

ll; will be understood that changes and modifications l v be madewithout departin; from the spi it of the invention.

li hat I claim is:

Feed ng mechanism in whichithe artic es are arranged in verticalposition, said feedin mechanism having feeding devices suckers forengaging and pulling edge of the foremost article, procaling saidsuckers vertimeans for i.

ally, and for is when moved downwaril cooperating with the suc rs and agripping roll cooperating wi i said rotary segment.

2. Feeding mechanism in which the articles are arranged in verticalposition, said feeding inerliun i-mi having feeding devices compririisuckers for engaging and pulling out the upper edge of the foremostarticle, means for reciprocating said suckers vertically, and forswinging the same outwardly when moved downwardly, a rotary segmentcooperating; with the suckers, a gripping roll with said rotary segment,and

'-, a rotary segment aers for engaging and pulling out the upper edge ofthe foremost article, me in; for reciprocating; said suckers vertically,and for swinging; the same outwardly when moved downwardly, a rotarysegment cooperating wiih the suckers, a grii 'iping roll cooperatino'with said rotary segment, and holding tin ers for engaging the upper orgas of the 2U'lT1CiGf-i.

l. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting, upon the articlesto advance them in a substantially horizontal n inner and feedingdevices comprising suckers for engaging and pulling out the upper edgeof the foremost article, means for reciprocating said suckersvertically, and for swinging the same outwardly when moved downwardly, arotary 'leediny; and makes it more be eli'ectivoly hold both ill) hesame outwardly lllO s for engaging; the upper ed cs segment cooperatingwith the suckers and a gripping roll cooperating with said rotarysegment.

5. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manner and feeding devicescomprising suckers for engaging and pulling out the upper edge of theforemost article, means for reciprocating said suckers vertically, andfor swinging the same out wardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segn'ient, and holding fingers for engaging the upper edges ofthe articles.

(5. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manne and feeding devicescomprising suckers for engaging and pulling out the upper edge of theforemost article, means for reciprocating said suckers vertically, andfor swinging the same outwardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segment. holding fingers for engaging the upper edges of thearticles, and stabbing devices for cooperating with said fingers to holdthe articles in position.

7. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manner and feeding devicescomprising suckers for engaging and pulling out the upper edge of theforemost article. means for reciprocating said suckers vertically, andfor swinging the same out wardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segment. holding fingers for engaging the upper edges of thearticles, and stabbing de vices for cooperating with said fingers tohold the articles in position and mechanism for actuating said holdingfingers and stabhing devices.

8. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manner and feeding devices comprisin suckers for engaging and pulling out the upper edge ofthe foremost article, means for reciprocating said suckers vertically,and for swinging the same outwardly when moved downwardly, a rotarysegment cooperating with the suckers, a gripping roll cooperating withsaid rotary segment, and means for controlling the suction to saidsuckers.

9. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manner and feeding devicescomprising suckers for engaging and pulling out the upper edge of theforemost article, means for reciprocating said suckers vertically, andfor swinging the same outwardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segment, and means for controlling the suction to said suckers,said means comprising valve mechanism and a cam and link arrangement foractuating the same.

10. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same.

11. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same, said engaging devicescomprising pins adapted for insertion into the upper edges of thearticles.

12. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same, said engaging devicescomprising pins adapted for insertion into the upper edges of thearticles, and means for reciprocating said pins.

13. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same, said engaging devicescomprising pins adapted for insertion into the upper edges of thearticles, and means for reciprocating said pins, said means comprising aswinging arm mounted on a rotary shaft and a cam and link arrangementfor swinging said shaft.

In witness whereof, I hereunto subscribe my name this 15th day ofDecember, A. D.

SEVERIN HALVORSEN.

